# Year 9 Maths

The tables below detail the individual topics studied throughout the year at each of the three tiers: Higher, Intermediate and Foundation. In the right hand column, links are provided to video tutorials on each of these topics. Some topics have more than one video so please ensure you watch them all if you are having difficulties with a particular topic.

Special thanks to CorbettMaths for the video tutorials.

#### Higher

 Term Topic Video Link(s) Term 1 Speed, Distance, Time (S-D-T) 299 Density, Mass, Volume (D-M-V) 384 Pressure, Force, Area (P-F-A) 385 Conversion Graphs Distance-Time Graphs 171 Circumference of a Circle 60 Angles in Polygons 32 Plotting Straight Line Graphs 186 Gradient of a Straight Line 189 Equation of a Straight Line 191 Rounding to Decimal Places & Significant Figures Estimation 215 Solving Simple Equations 110 Solving Equations with Letters on Both Sides & Brackets Term 2 Inequalities on a Number Line Solving Inequalities 178 Pie Charts Scatter Diagrams Correlation & Line of Best Fit Rules of Indices Expanding Double Brackets 14 Area of a Circle 40 Pythagoras' Theorem 257 Substitution 20 Changing the Subject of a Formula 7 Percentage Change (Increase, Decrease, Profit, Loss) 233 Term 3 Loci & Constructing Triangles 75, 81, 82, 83 Volume of a Prism 356 Adding, Subtracting, Multiplying & Dividing Decimals 90, 91, 94, 93 Dividing a Decimal by a Decimal 92 Adding & Subtracting Fractions and Mixed Numbers Multiplying & Dividing Fractions and Mixed Numbers

#### Intermediate

 Term Topic Video Link(s) Term 1 Four Operations with Negative Numbers BIDMAS 211 Questionnaires 268 Grouped Tally Charts & Bar Charts Mean, Mode, Median & Range from a Frequency Table 54, 51 Mean, Mode, Median & Range from a Grouped Frequency Table 55, 52 Adding, Subtracting, Multiplying & Dividing Decimals 90, 91, 94, 93 Solving Simple Equations 110 Solving Equations with Fractions 111 Expanding Brackets 13 Factorisation 117 Angles in Parallel Lines 25 Plans & Elevations 354 Best Buys 210 Exchange Rates 214a Term 2 Rules of Indices Rounding to Nearest 10, 100, 1000, Whole No Rounding to Decimal Places & Significant Figures Estimation 215 Adding & Subtracting Fractions and Mixed Numbers Multiplying & Dividing Fractions and Mixed Numbers Speed, Distance, Time (S-D-T) 299 Real Life Graphs Conversion Graphs Distance-Time Graphs 171 Plotting Straight Line Graphs 186 Enlargements Simplifying Ratio 269 Dividing in a Ratio 270 Direct Proportion 255a Best Buys 210 Term 3 Finding a Percentage of an Amount Increasing or Decreasing by a Percentage 238 Percentage Change (Increase, Decrease, Profit, Loss) 233 Probability Sample Space Diagrams 246 Constructing Triangles 81, 82, 83 Nets of 3D Shapes 4 Volume of Cubes, Cuboids & Simple Prisms Surface Area of Cubes, Cuboids & Simple Prisms

#### Foundation

 Term Topic Video Link(s) Term 1 Long Multiplication (including Word Problems) 39p Multiplying by 10, 100, 1000 202 Adding & Subtracting Decimals (including Word Problems) 90, 91 Ordering Decimals 17p Rounding Decimals to Nearest Whole Number 276 Introduction to Formulae Reading Scales 284 Converting Metric Units of Length, Mass & Capacity Long Division Angles in a Straight Line & Angles at a Point 35, 30 BIDMAS 211 Negative Numbers - Ordering, Adding & Subtracting Rounding to the Nearest 10, 100, 1000 Term 2 Simplifying Expressions 9 Substitution 20 Estimating Area by Counting Squares 43 Area of Squares & Rectangles 45 Perimeter of Simple Shapes Equivalent Fractions & Simplifying Fractions Linear Sequences Converting Between Fractions & Percentages Finding a Percentage of an Amount 137 Classifying, Drawing & Measuring Angles 38, 28, 31 Angles in Triangles & Quadrilaterals 37, 33 Solving Simple Equations 110 Term 3 Probability of an Event Happening Tally Charts 321 Pictograms & Bar Charts Line Graphs 160 Stem & Leaf Diagrams Simplifying Ratio 269

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